#716: Unloading a dll generated by GHC doesn't free all resources
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Reporter: [EMAIL PROTECTED] | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.4.1
Severity: normal | Resolution:
Keywords: | Os: Unknown
Difficulty: Unknown | Architecture: Unknown
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Comment (by [EMAIL PROTECTED]):
After some more examination I've seen that the threads are supposed to
exit.
BUT, it doesn't really work because of a bad race condition.
Take stopTicker(). It sends an event to the tick thread that tells it
to exit. But then it never waits for the thread to actually exit!
This means that when the tick thread get scheduled to run the Haskell
DLL migh have been unloaded from memory. And it seems that that this
really happens, albeit rarely.
For each occurence of _beginthreadex() in the code there really needs to
be a corresponding call that waits for the thread to shut down when
exiting. You can't rely on thread scheduling to run things in the right
order.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/716>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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